Simplify BrowserContext by removing redundant methods.

content/browser/browser_context.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/public/browser/browser_context.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <algorithm>
 #include <limits>
@@ skipping 283 matching lines @@
   GetDefaultStoragePartition(browser_context)->GetDatabaseTracker()->
       SetForceKeepSessionState();
   StoragePartition* storage_partition =
       BrowserContext::GetDefaultStoragePartition(browser_context);
 
   if (BrowserThread::IsMessageLoopValid(BrowserThread::IO)) {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::Bind(
             &SaveSessionStateOnIOThread,
-            make_scoped_refptr(browser_context->GetRequestContext()),
+            make_scoped_refptr(BrowserContext::GetDefaultStoragePartition(
+                browser_context)->GetURLRequestContext()),
             static_cast<AppCacheServiceImpl*>(
                 storage_partition->GetAppCacheService())));
   }
 
   DOMStorageContextWrapper* dom_storage_context_proxy =
       static_cast<DOMStorageContextWrapper*>(
           storage_partition->GetDOMStorageContext());
   dom_storage_context_proxy->SetForceKeepSessionState();
 
   IndexedDBContextImpl* indexed_db_context_impl =
@@ skipping 48 matching lines @@
 BrowserContext::~BrowserContext() {
   CHECK(GetUserData(kMojoWasInitialized))
       << "Attempting to destroy a BrowserContext that never called "
       << "Initialize()";
 
   if (GetUserData(kDownloadManagerKeyName))
     GetDownloadManager(this)->Shutdown();
 }
 
 }  // namespace content